Diagnostic Performance of the Eustachian Tube Dysfunction Questionnaire-7 (ETDQ-7) in Predicting Objective Eustachian Tube Patency Among Patients with Chronic Rhinosinusitis: A Cross-Sectional Analytical Study at a Tertiary Referral Hospital in Bali, Indonesia. OAIJMR. 2026;6(6):590-605. doi:10.37275/oaijmr.v6i6.950